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  <title>test_tags_from_article (SeriousBlogHelperTest)</title>
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  <pre><span class="ruby-comment cmt"># File test/serious_blog_helper_test.rb, line 11</span>
  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">test_tags_from_article</span>
    <span class="ruby-identifier">result</span> = <span class="ruby-constant">SeriousBlogHelper</span><span class="ruby-operator">::</span><span class="ruby-identifier">tags_from_article</span>(<span class="ruby-keyword kw">nil</span>)
    <span class="ruby-identifier">assert</span>(<span class="ruby-value str">&quot;nil should lead to nil in the result&quot;</span>, <span class="ruby-identifier">result</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>)
  <span class="ruby-keyword kw">end</span></pre>
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